Home / 55,322.14-76,343.77-31,121.26

Finding the Fourth Proportional to 55,322.14, 76,343.77 and 31,121.26

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Solution

The fourth proportional to 55,322.14, 76,343.77 and 31,121.26 is: 42,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.14 : 76,343.77 = 31,121.26 : x
  2. Step 2: Convert to fraction form
    55,322.14/76,343.77 = 31,121.26/x
  3. Step 3: Cross multiply
    55,322.14x = 76,343.77 × 31,121.26
  4. Step 4: Simplify right side
    55,322.14x = 2,375,914,417.97
  5. Step 5: Solve for x
    x = 2,375,914,417.97/55,322.14
  6. Step 6: Final answer
    x = 42,946.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.